| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.jclouds.openstack.marconi.v1.functions; |
| |
| import com.google.common.base.Function; |
| import com.google.inject.Inject; |
| import org.jclouds.http.HttpResponse; |
| import org.jclouds.http.functions.ParseJson; |
| import org.jclouds.openstack.marconi.v1.domain.Aged; |
| import org.jclouds.openstack.marconi.v1.domain.MessagesStats; |
| import org.jclouds.openstack.marconi.v1.domain.QueueStats; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.jclouds.openstack.marconi.v1.functions.ParseMessages.TO_MESSAGE_ID; |
| |
| /** |
| * This parses the stats of a queue. |
| * |
| * @author Everett |
| */ |
| public class ParseQueueStats implements Function<HttpResponse, QueueStats> { |
| |
| private final ParseJson<QueueStats> json; |
| |
| @Inject |
| ParseQueueStats(ParseJson<QueueStats> json) { |
| this.json = checkNotNull(json, "json"); |
| } |
| |
| public QueueStats apply(HttpResponse from) { |
| QueueStats rawQueueStats = json.apply(from); |
| |
| if (rawQueueStats.getMessagesStats().getTotal() == 0) { |
| return rawQueueStats; |
| } |
| else { |
| // change the hrefs to ids |
| Aged oldestWithHref = rawQueueStats.getMessagesStats().getOldest().get(); |
| Aged oldestWithId = oldestWithHref.toBuilder() |
| .id(TO_MESSAGE_ID.apply(oldestWithHref.getId())) |
| .build(); |
| Aged newestWithHref = rawQueueStats.getMessagesStats().getNewest().get(); |
| Aged newestWithId = newestWithHref.toBuilder() |
| .id(TO_MESSAGE_ID.apply(newestWithHref.getId())) |
| .build(); |
| |
| MessagesStats messagesStatsWithIds = rawQueueStats.getMessagesStats().toBuilder() |
| .oldest(oldestWithId) |
| .newest(newestWithId) |
| .build(); |
| |
| QueueStats queueStatsWithIds = rawQueueStats.toBuilder().messageStats(messagesStatsWithIds).build(); |
| |
| return queueStatsWithIds; |
| } |
| } |
| } |